Insulator.



ADDISON B. TINSIEY, OF ANS'IEAD, WEST VIRGINIA.

INSULATOR.

Specification of Letters Patent.

Patented Aug. 1, 1911.

Application filed March 1, 1910. Serial No. 546,642.

To all whom it may concern:

Be it known that I, ADDIsoN B. TINSLEY, a citizen of the United States, residing at Anstead, in the county of Fayette and State of West Virginia, have invented a new and useful Insulator, of which the following is a specification.

It is the object of this invention to provide an insulator, one of the component parts of which will be so disposed with respect to the other, that the first named part will be well adapted to deflect the water falling upon the insulator, beyond the contour of the other part, so that it will be difficult for the water to lind its way within the insulator.

Another object of the invention is to provide an insulator, the parts of which are adapted to serve as clamps, between which the wire is carried, novel means being provided for forcing the clamps together.

Another object of the invention is to provide an insulator, so constructed that the wire which passes through the insulator will be held apart from the lower edge thereof, thus preventing any leakage of electricity over the outer, wet face of the insulator.

With the above and other objects in view,

the invention consists in the novel construction and arrangement of parts hereinafter described, delineated in the drawings and claimed, it being understood that, within the scope of what is claimed, divers changes may be made, without departing from the spirit of the invention.

In the drawings,-Figure 1 is a transverse section of one form of my invention; Fig. 2 is a transverse section, the cutting plane being at right angles to the cutting plane of Fig. 1; Fig. 3 is a transverse section of a modified forni of the invention; Fig. 4 is a transverse section of the form of the invention delineated in Fig. 3, the cutting plane of Fig. 4 being at right angles to the cutting plane of Fig. 3; and Fig. 5 is a top plan of a modified form of lug which may be employed in either of the forms delineated in the preceding figures.

In t-he drawings, the numeral 1 denotes the support upon which the insulator is mounted; and this support may be represented by the cross arm of a telegraph pole, or the like. Fixed in, and rising from the support 1, are spaced standards 2. Between these standards 2 is located the base 3 of the insulator, the base 3 being notched at its outer edges, to lit between the standards 2. Resting upon the base 3 is the cap 4, the same being adapted, like the base 3, to fit between the standards 2. Rising from the base 3 is a lug 5, preferably formed integrally with the base, and this lug 5 is adapted to register in an opening 6 in the lower face of the cap 4. In the upper face of the lug 5 grooves are made, for the reception of the wires. It is of course obvious that there maybe any number of these grooves; in the present instance, I have shown three of them, although a greater or less number might be employed. These grooves 7 in the upper face of the lug 5 are adapted to cooperate with similar grooves, designated by a like numeral, and located in the lower face of the cap 4. In these cooperating grooves 7 of the lug 5 and the cap 47 the wires 8 are located.

The upper, outer face of the Cap 4 is rounded as denoted by the numeral 11, in order that water falling upon the insulator may be properly defieoted. The cap 4, at its lower periphery, is made somewhat larger than the base 3, and by this construction, the water falling upon the rounded surface 11 of the cap 4 will be deflected beyond the periphery of the base 3, thus keeping the interior of the insulator dry at all times. The cap 4 is provided upon its lower face with a peripheral flange 9, and a rib 10 extends transversely of the lower face of the cap beneath the periphery of the flange 9. This rib 10 depends below the lower edge of the flange 9, and by this construction, the wire 8, is, as clearly seen in Fig. 2.

of the drawings, maintained apart from the flange 9. The rib 10, being located within the periphery of the flange 9, will be kept dry, and, since the wire 8 is spaced apart from the lower edge of the flange 9, there will be no opportunity for leakage of electricity from t-he wire 8 upon the wet rounded face 11 of the insulator.

At their free extremities, the standards 2 are provided with heads 12. A bridge-piece 14 enters into the structure; and this bridgepiece at one end, is provided with diverging prongs 15. At the other end of the bridgepiece 14, and in one side thereof, there is a notch 16. The prongs 15 may be made to straddle one of the standards 2, to be engaged beneath the head 12 of the said standard. lThen, by swinging the bridgepiece laterally, the notch 16 may be made to engage the other standard, beneath the head thereof. Mounted in the bridge-piece 14, intermediate the ends thereof, is a set screw 17, and, by advancing this set screw in the bridge-piece, the cap 4 may be crowded down upon the base 3, thus clamping the wires 8 between the cap 4 and the base 3.

If desired, the modified form illust-rated in Figs. 3 and 4 may be employed. In such case, the standards 1S are rectangularly bent, to receive hooks 19 at the ends of a bail 20, the bail 2O in such case, replacing the bridging member 14 of Figs. 1 and 2. Into this bail 20, the set screw 27 is introduced, and the set screw serves, as before, to clamp the base and the cap together. In this case, the lug 21 which rises from the base is modified from the showing of the preceding figures. The upper face of this lug consists of a series of steps 22, the lower face of the cap being shaped to conform to these steps. rI`he rib 23 is likewise modified, the same being stepped, as denoted by the numeral 24, to conform to the steps 22 of the lug 21. rlhe advantages incident to this construction are, that the wires 8, may be carried out of the insulator at different heights, and thus, the wires may be crossed, as they pass out of the insulator, and extended in different directions, without coming` into contactI with each other, and short-circuiting.

In F ig. 5 a further modification of the invent-ion is shown, the invention consistin in altering slightly the wire-receiving groove in the upper face of the lug of the base portion of the device. It is to be understood that this lug delineated in lfig. 5, may be applied to either of the forms of the invention hereinbefore described. This modified lug 25 has upon its upper face, a channel 26 for the reception of a wire, the channel, in its intermediate portion, beingenlarged as denoted by the numeral 27. By this construction, the wire may be wrapped where it passes through the insulator, the wrapping being disposed in the enlarged portion 27 of the. groove; or, if necessary, the enlarged yportion 27 of the groove may be employed to retain a splice in the wire, or any other enlargement therein.

F rom the foregoing it will be seen that by manipulating the set screw 17 in either form of the invention, the cap 4 will be bound firmly upon the base 3, thus securing the wires in place. Moreover, any water falling upon the rounded upper surface 11 of the cap 4 will not only be deflected outwardly, but, deflected outwardly beyond the contour of the base upon which the cap is mounted, thus preventing the water from finding its way into the insulator. The insulator' is so constructed that a plurality of wires may be crossed as they leave the insulator, and extended in different directions, without short-circuiting the wires. And finally, a wrapping of any sort may surround the wire, within the contour of the insulator, without interfering with the operation of the device.

The bridge-piece 14 of Figs. 1 and 2 may readily be swung laterally and tilted upwardly for remo val from the standards 2, and the hooks 1S) upon the ends of the bail 2O will permit the said bail to be swung downwardly at its upper end, so that the cap may readily be removed.

Having thus described the in\feution,what is claimed is 1. In a device of the class described, spaced standards provided with heads; a cap located between the standards; and a freely removable, cap engaging bridge piece slidable in the direction of its length to engage beneath the head of one standard and tiltable in a plane at right angles to the standards to engage beneath the head of the other standard.

2. In a device ofl the class described, spaced standards adapted to be mounted in a fixed support and provided with heads; a cap disposed between the standards; a bridge piece provided at one end with spaced prongs to engage beneath one head when the bridge piece is slid longitudinally, the bridge having a notch in its side face to engage beneath the other head when the bridge piece is tilted in a plane at right angles to the standards; and a clamping device in the bridge piece to bear upon the'eap. 100

In testimony that I claim the foregoing as my own, I have hereto affixed my signature 1n the presence of two witnesses.

ADDISON B. TINSLEY.

lVitnesses:

C. E. Dormi, Gro. B. Prris.

Copies of this patent may be obtained. for ve cents each, by addressing the Commissioner of Iatents,

Vlashington, D. C. 

